Table 1 Patient Demographics, Hospital Characteristics, and Admission Type

Age

65.9 (+/−0.62)

70.5 (+/−0.34)

70.0 (+/−0.32)

<.001

Female

1,024 (40.2%)

9,953 (50.3%)

10,976 (49.1%)

<.001

Race

0.657

 White

1,639 (64.4%)

12,764 (64.5%)

14,404 (64.4%)

 Black

224 (8.8%)

1,483 (7.5%)

1,707 (7.6%)

 Hispanic

200 (7.8%)

1,910 (9.6%)

2,110 (9.4%)

 Other

129 (5.1%)

999 (5.0%)

1,128 (5.0%)

 Missing

353 (13.9%)

2,649 (13.4%)

3,002 (13.4%)

Primary payer type

<.001

 Medicare

1,499 (58.9%)

13,798 (69.7%)

15,297 (68.4%)

 Medicaid

231 (9.1%)

1,300 (6.6%)

1,531 (6.9%)

 Private (including HMO)

710 (27.9%)

3,880 (19.6%)

4,590 (20.5%)

 Self-pay

41 (1.6%)

408 (2.1%)

448 (2.0%)

 Missing/No charge/Other

65 (2.5%)

420 (2.1%)

484 (2.2%)

Hospital region

0.845

 Northeast

433 (17.0%)

3,465 (17.5%)

3,897 (17.4%)

 Midwest

607 (23.8%)

5,037 (25.4%)

5,644 (25.3%)

 South

1,055 (41.4%)

8,114 (41.0%)

9,169 (41.0%)

 West

452 (17.8%)

3,189 (16.1%)

3,641 (16.3%)

 Teaching hospital

1,332 (52.3%)

8,354 (42.2%)

9,687 (43.3%)

<.001

Bed size

0.022

 Small

229 (9.0%)

2,581 (13.0%)

2,811 (12.6%)

 Medium

499 (19.6%)

4,309 (21.8%)

4,807 (21.5%)

 Large

1,771 (69.6%)

12,676 (64.0%)

14,447 (64.6%)

 Missing

47 (1.8%)

239 (1.2%)

286 (1.3%)

Evidence of ED services^a

1,650 (64.8%)

13,262 (67.0%)

14,912 (66.7%)

0.363

Principal diagnosis of IPF

802 (31.5%)

8,823 (44.6%)

9,626 (43.1%)

<.001

Elective admission^b

361 (14.2%)

3,152 (15.9%)

3,512 (15.7%)

0.307